17 Oct
2022
17 Oct
'22
4:20 p.m.
https://git.reactos.org/?p=reactos.git;a=commitdiff;h=a33719500c71638da03e8…
commit a33719500c71638da03e83e0c9914ec9c9fe3c27
Author: Hervé Poussineau <hpoussin(a)reactos.org>
AuthorDate: Mon Oct 17 12:00:00 2022 +0200
Commit: hpoussin <32227662+hpoussin(a)users.noreply.github.com>
CommitDate: Mon Oct 17 18:20:22 2022 +0200
[BOCHSMP] Add driver for QEMU and Bochs graphic card
---
boot/bootdata/hivesys.inf | 3 +
win32ss/drivers/miniport/CMakeLists.txt | 1 +
win32ss/drivers/miniport/bochs/CMakeLists.txt | 12 +
win32ss/drivers/miniport/bochs/bochsmp.c | 766 +++++++++++++++++++++++++
win32ss/drivers/miniport/bochs/bochsmp.h | 69 +++
win32ss/drivers/miniport/bochs/bochsmp.inf | 62 ++
win32ss/drivers/miniport/bochs/bochsmp.rc | 5 +
win32ss/drivers/miniport/bochs/bochsmp_reg.inf | 13 +
8 files changed, 931 insertions(+)
diff --git a/boot/bootdata/hivesys.inf b/boot/bootdata/hivesys.inf
index 45c3d6e6446..3bc5eb62c63 100644
--- a/boot/bootdata/hivesys.inf
+++ b/boot/bootdata/hivesys.inf
@@ -83,6 +83,9 @@
HKLM,"SYSTEM\CurrentControlSet\Control\CriticalDeviceDatabase\HID_DEVICE_SYSTEM_
HKLM,"SYSTEM\CurrentControlSet\Control\CriticalDeviceDatabase\HID_DEVICE_SYSTEM_MOUSE","Service",0x00000000,"mouhid"
HKLM,"SYSTEM\CurrentControlSet\Control\CriticalDeviceDatabase\HID_DEVICE_SYSTEM_MOUSE","ClassGUID",0x00000000,"{4D36E96F-E325-11CE-BFC1-08002BE10318}"
+HKLM,"SYSTEM\CurrentControlSet\Control\CriticalDeviceDatabase\PCI#VEN_1234&DEV_1111","Service",0x00000000,"bochsmp"
+HKLM,"SYSTEM\CurrentControlSet\Control\CriticalDeviceDatabase\PCI#VEN_1234&DEV_1111","ClassGUID",0x00000000,"{4D36E968-E325-11CE-BFC1-08002BE10318}"
+
HKLM,"SYSTEM\CurrentControlSet\Control\CriticalDeviceDatabase\PCI#CC_0000","Service",0x00000000,"vga"
HKLM,"SYSTEM\CurrentControlSet\Control\CriticalDeviceDatabase\PCI#CC_0000","ClassGUID",0x00000000,"{4D36E968-E325-11CE-BFC1-08002BE10318}"
diff --git a/win32ss/drivers/miniport/CMakeLists.txt
b/win32ss/drivers/miniport/CMakeLists.txt
index 4e6d357051d..e5996f9b2e7 100644
--- a/win32ss/drivers/miniport/CMakeLists.txt
+++ b/win32ss/drivers/miniport/CMakeLists.txt
@@ -1,4 +1,5 @@
+add_subdirectory(bochs)
add_subdirectory(vbe)
add_subdirectory(vga)
#add_subdirectory(vga_new)
diff --git a/win32ss/drivers/miniport/bochs/CMakeLists.txt
b/win32ss/drivers/miniport/bochs/CMakeLists.txt
new file mode 100644
index 00000000000..aff939aa26e
--- /dev/null
+++ b/win32ss/drivers/miniport/bochs/CMakeLists.txt
@@ -0,0 +1,12 @@
+list(APPEND SOURCE
+ bochsmp.c
+ bochsmp.h)
+
+add_library(bochsmp MODULE ${SOURCE} bochsmp.rc)
+set_module_type(bochsmp kernelmodedriver)
+add_importlibs(bochsmp videoprt)
+target_link_libraries(bochsmp libcntpr)
+add_pch(bochsmp bochsmp.h SOURCE)
+add_cd_file(TARGET bochsmp DESTINATION reactos/system32/drivers FOR all)
+add_registry_inf(bochsmp_reg.inf)
+add_driver_inf(bochsmp bochsmp.inf)
diff --git a/win32ss/drivers/miniport/bochs/bochsmp.c
b/win32ss/drivers/miniport/bochs/bochsmp.c
new file mode 100644
index 00000000000..220c15336f3
--- /dev/null
+++ b/win32ss/drivers/miniport/bochs/bochsmp.c
@@ -0,0 +1,766 @@
+/*
+ * PROJECT: ReactOS Bochs graphics card driver
+ * LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
+ * PURPOSE: Bochs graphics card driver
+ * COPYRIGHT: Copyright 2022 Hervé Poussineau <hpoussin(a)reactos.org>
+ */
+
+#include "bochsmp.h"
+
+static const BOCHS_SIZE BochsAvailableResolutions[] = {
+ { 640, 480 }, // VGA
+ { 800, 600 }, // SVGA
+ { 1024, 600 }, // WSVGA
+ { 1024, 768 }, // XGA
+ { 1152, 864 }, // XGA+
+ { 1280, 720 }, // WXGA-H
+ { 1280, 768 }, // WXGA
+ { 1280, 960 }, // SXGA-
+ { 1280, 1024 }, // SXGA
+ { 1368, 768 }, // HD ready
+ { 1400, 1050 }, // SXGA+
+ { 1440, 900 }, // WSXGA
+ { 1600, 900 }, // HD+
+ { 1600, 1200 }, // UXGA
+ { 1680, 1050 }, // WSXGA+
+ { 1920, 1080 }, // FHD
+ { 2048, 1536 }, // QXGA
+ { 2560, 1440 }, // WQHD
+ { 2560, 1600 }, // WQXGA
+ { 2560, 2048 }, // QSXGA
+ { 2800, 2100 }, // QSXGA+
+ { 3200, 2400 }, // QUXGA
+ { 3840, 2160 }, // 4K UHD-1
+};
+
+CODE_SEG("PAGE")
+static VOID
+BochsFreeResources(
+ _Inout_ PBOCHS_DEVICE_EXTENSION DeviceExtension)
+{
+ if (DeviceExtension->AvailableModeInfo)
+ {
+ VideoPortFreePool(DeviceExtension, DeviceExtension->AvailableModeInfo);
+ DeviceExtension->AvailableModeInfo = NULL;
+ }
+}
+
+CODE_SEG("PAGE")
+static VOID
+BochsWriteDispI(
+ _In_ PBOCHS_DEVICE_EXTENSION DeviceExtension,
+ _In_ ULONG Index,
+ _In_ USHORT Value)
+{
+ if (DeviceExtension->IoPorts.RangeInIoSpace)
+ {
+ VideoPortWritePortUshort((PUSHORT)(DeviceExtension->IoPorts.Mapped -
VBE_DISPI_IOPORT_INDEX + VBE_DISPI_IOPORT_INDEX), Index);
+ VideoPortWritePortUshort((PUSHORT)(DeviceExtension->IoPorts.Mapped -
VBE_DISPI_IOPORT_INDEX + VBE_DISPI_IOPORT_DATA), Value);
+ }
+ else
+ {
+ VideoPortWriteRegisterUshort((PUSHORT)(DeviceExtension->IoPorts.Mapped + 0x500
+ Index * 2), Value);
+ }
+}
+
+CODE_SEG("PAGE")
+static USHORT
+BochsReadDispI(
+ _In_ PBOCHS_DEVICE_EXTENSION DeviceExtension,
+ _In_ ULONG Index)
+{
+ if (DeviceExtension->IoPorts.RangeInIoSpace)
+ {
+ VideoPortWritePortUshort((PUSHORT)(DeviceExtension->IoPorts.Mapped -
VBE_DISPI_IOPORT_INDEX + VBE_DISPI_IOPORT_INDEX), Index);
+ return VideoPortReadPortUshort((PUSHORT)(DeviceExtension->IoPorts.Mapped -
VBE_DISPI_IOPORT_INDEX + VBE_DISPI_IOPORT_DATA));
+ }
+ else
+ {
+ return VideoPortReadRegisterUshort((PUSHORT)(DeviceExtension->IoPorts.Mapped +
0x500 + Index * 2));
+ }
+}
+
+CODE_SEG("PAGE")
+static BOOLEAN
+BochsWriteDispIAndCheck(
+ _In_ PBOCHS_DEVICE_EXTENSION DeviceExtension,
+ _In_ ULONG Index,
+ _In_ USHORT Value)
+{
+ BochsWriteDispI(DeviceExtension, Index, Value);
+ return BochsReadDispI(DeviceExtension, Index) == Value;
+}
+
+CODE_SEG("PAGE")
+static BOOLEAN
+BochsInitializeSuitableModeInfo(
+ _In_ PBOCHS_DEVICE_EXTENSION DeviceExtension,
+ _In_ ULONG PotentialModeCount)
+{
+ ULONG i, ModeCount = 0;
+
+ for (i = 0; i < ARRAYSIZE(BochsAvailableResolutions) && ModeCount <
PotentialModeCount; i++)
+ {
+ if (BochsAvailableResolutions[i].XResolution >
DeviceExtension->MaxXResolution)
+ continue;
+ if (BochsAvailableResolutions[i].YResolution >
DeviceExtension->MaxYResolution)
+ continue;
+ if (BochsAvailableResolutions[i].XResolution *
BochsAvailableResolutions[i].YResolution * 4 > DeviceExtension->VramSize64K * 64 *
1024)
+ continue;
+ DeviceExtension->AvailableModeInfo[ModeCount++] =
BochsAvailableResolutions[i];
+ }
+
+ if (ModeCount == 0)
+ {
+ VideoDebugPrint((Error, "Bochs: no suitable modes available!\n"));
+ return FALSE;
+ }
+
+ DeviceExtension->AvailableModeCount = ModeCount;
+ return TRUE;
+}
+
+CODE_SEG("PAGE")
+static BOOLEAN
+BochsGetControllerInfo(
+ _Inout_ PBOCHS_DEVICE_EXTENSION DeviceExtension)
+{
+ USHORT Version;
+ WCHAR ChipType[5];
+ ULONG SizeInBytes;
+
+ /* Detect DISPI version */
+ for (Version = VBE_DISPI_ID5; Version >= VBE_DISPI_ID0; Version--)
+ {
+ if (BochsWriteDispIAndCheck(DeviceExtension, VBE_DISPI_INDEX_ID, Version))
+ break;
+ }
+ if (Version < VBE_DISPI_ID0)
+ {
+ VideoDebugPrint((Error, "Bochs: VBE extension signature
incorrect\n"));
+ return FALSE;
+ }
+ VideoDebugPrint((Error, "Bochs: detected version 0x%04x\n", Version));
+ if (Version < VBE_DISPI_ID2)
+ {
+ /* Too old (no 32 bpp support, no linear frame buffer) */
+ VideoDebugPrint((Error, "Bochs: VBE extension too old (0x%04x)\n",
Version));
+ return FALSE;
+ }
+
+ if (Version <= VBE_DISPI_ID2)
+ {
+ DeviceExtension->MaxXResolution = 1024;
+ DeviceExtension->MaxYResolution = 768;
+ }
+ else
+ {
+ BochsWriteDispI(DeviceExtension, VBE_DISPI_INDEX_ENABLE, VBE_DISPI_GETCAPS);
+ DeviceExtension->MaxXResolution = BochsReadDispI(DeviceExtension,
VBE_DISPI_INDEX_XRES);
+ DeviceExtension->MaxYResolution = BochsReadDispI(DeviceExtension,
VBE_DISPI_INDEX_YRES);
+ BochsWriteDispI(DeviceExtension, VBE_DISPI_INDEX_ENABLE, VBE_DISPI_DISABLED);
+ /* Workaround bug in QEMU bochs-display */
+ if (DeviceExtension->MaxXResolution == 0 &&
DeviceExtension->MaxYResolution == 0)
+ {
+ DeviceExtension->MaxXResolution = 1024;
+ DeviceExtension->MaxYResolution = 768;
+ }
+ }
+ if (Version < VBE_DISPI_ID4)
+ {
+ DeviceExtension->VramSize64K = 4 * 1024 / 64; /* 4 MB */
+ }
+ else if (Version == VBE_DISPI_ID4)
+ {
+ DeviceExtension->VramSize64K = 8 * 1024 / 64; /* 8 MB */
+ }
+ else
+ {
+ DeviceExtension->VramSize64K = BochsReadDispI(DeviceExtension,
VBE_DISPI_INDEX_VIDEO_MEMORY_64K);
+ }
+ VideoDebugPrint((Info, "Bochs: capabilities %dx%d (%d MB)\n",
+ DeviceExtension->MaxXResolution,
+ DeviceExtension->MaxYResolution,
+ DeviceExtension->VramSize64K * 64 / 1024));
+
+ /* Store information in registry */
+#define HEX(c) (((c) >= 0 && (c) <= 9) ? (c) + L'0' : (c) - 10 +
L'A')
+ ChipType[0] = HEX((Version >> 12) & 0xf);
+ ChipType[1] = HEX((Version >> 8) & 0xf);
+ ChipType[2] = HEX((Version >> 4) & 0xf);
+ ChipType[3] = HEX(Version & 0xf);
+ ChipType[4] = UNICODE_NULL;
+ VideoPortSetRegistryParameters(DeviceExtension,
L"HardwareInformation.ChipType", ChipType, sizeof(ChipType));
+ SizeInBytes = DeviceExtension->VramSize64K * 64 * 1024;
+ VideoPortSetRegistryParameters(DeviceExtension,
L"HardwareInformation.MemorySize", &SizeInBytes, sizeof(SizeInBytes));
+ return TRUE;
+}
+
+CODE_SEG("PAGE")
+static VOID
+BochsGetModeInfo(
+ _In_ PBOCHS_SIZE AvailableModeInfo,
+ _Out_ PVIDEO_MODE_INFORMATION ModeInfo,
+ _In_ ULONG Index)
+{
+ VideoDebugPrint((Info, "Bochs: Filling details of mode #%d\n", Index));
+
+ ModeInfo->Length = sizeof(*ModeInfo);
+ ModeInfo->ModeIndex = Index;
+ ModeInfo->VisScreenWidth = AvailableModeInfo->XResolution;
+ ModeInfo->VisScreenHeight = AvailableModeInfo->YResolution;
+ ModeInfo->ScreenStride = AvailableModeInfo->XResolution * 4;
+ ModeInfo->NumberOfPlanes = 1;
+ ModeInfo->BitsPerPlane = 32;
+ ModeInfo->Frequency = 60;
+
+ /* 960 DPI appears to be common */
+ ModeInfo->XMillimeter = AvailableModeInfo->XResolution * 254 / 960;
+ ModeInfo->YMillimeter = AvailableModeInfo->YResolution * 254 / 960;
+ ModeInfo->NumberRedBits = 8;
+ ModeInfo->NumberGreenBits = 8;
+ ModeInfo->NumberBlueBits = 8;
+ ModeInfo->RedMask = 0xff0000;
+ ModeInfo->GreenMask = 0x00ff00;
+ ModeInfo->BlueMask = 0x0000ff;
+
+ ModeInfo->AttributeFlags = VIDEO_MODE_GRAPHICS | VIDEO_MODE_COLOR |
VIDEO_MODE_NO_OFF_SCREEN;
+ ModeInfo->VideoMemoryBitmapWidth = AvailableModeInfo->XResolution;
+ ModeInfo->VideoMemoryBitmapHeight = AvailableModeInfo->YResolution;
+}
+
+CODE_SEG("PAGE")
+static BOOLEAN
+BochsMapVideoMemory(
+ _In_ PBOCHS_DEVICE_EXTENSION DeviceExtension,
+ _In_ PVIDEO_MEMORY RequestedAddress,
+ _Out_ PVIDEO_MEMORY_INFORMATION MapInformation,
+ _Out_ PSTATUS_BLOCK StatusBlock)
+{
+ VP_STATUS Status;
+ PHYSICAL_ADDRESS VideoMemory;
+ ULONG MemSpace = VIDEO_MEMORY_SPACE_MEMORY;
+
+ VideoDebugPrint((Info, "Bochs: BochsMapVideoMemory Entry\n"));
+
+ VideoMemory = DeviceExtension->FrameBuffer.RangeStart;
+ MapInformation->VideoRamBase = RequestedAddress->RequestedVirtualAddress;
+ MapInformation->VideoRamLength = 4 *
+
DeviceExtension->AvailableModeInfo[DeviceExtension->CurrentMode].XResolution *
+
DeviceExtension->AvailableModeInfo[DeviceExtension->CurrentMode].YResolution;
+
+ Status = VideoPortMapMemory(DeviceExtension,
+ VideoMemory,
+ &MapInformation->VideoRamLength,
+ &MemSpace,
+ &MapInformation->VideoRamBase);
+ if (Status != NO_ERROR)
+ {
+ VideoDebugPrint((Error, "BochsMapVideoMemory - VideoPortMapMemory failed
status:%x\n", Status));
+ StatusBlock->Status = Status;
+ return FALSE;
+ }
+
+ MapInformation->FrameBufferBase = MapInformation->VideoRamBase;
+ MapInformation->FrameBufferLength = MapInformation->VideoRamLength;
+ StatusBlock->Information = sizeof(*MapInformation);
+ StatusBlock->Status = NO_ERROR;
+
+ VideoDebugPrint((Info, "Bochs:BochsMapVideoMemory Exit VideoRamBase: %p
VideoRamLength: 0x%x PhysBasePtr: 0x%x\n",
+ MapInformation->VideoRamBase, MapInformation->VideoRamLength,
(ULONG)VideoMemory.QuadPart));
+ return TRUE;
+}
+
+CODE_SEG("PAGE")
+static BOOLEAN NTAPI
+BochsUnmapVideoMemory(
+ _In_ PBOCHS_DEVICE_EXTENSION DeviceExtension,
+ _In_ PVIDEO_MEMORY VideoMemory,
+ _Out_ PSTATUS_BLOCK StatusBlock)
+{
+ VP_STATUS Status;
+
+ VideoDebugPrint((Info, "Bochs: BochsUnmapVideoMemory Entry
VideoRamBase:%p\n", VideoMemory->RequestedVirtualAddress));
+
+ Status = VideoPortUnmapMemory(DeviceExtension,
VideoMemory->RequestedVirtualAddress, NULL);
+ if (Status != NO_ERROR)
+ {
+ VideoDebugPrint((Error, "Bochs: BochsUnmapVideoMemory Failed to unmap
memory:%p Status:%x\n",
+ VideoMemory->RequestedVirtualAddress,
+ Status));
+ }
+
+ StatusBlock->Status = Status;
+
+ VideoDebugPrint((Info, "Bochs: BochsUnmapVideoMemory Exit status:%x\n",
Status));
+ return (Status == NO_ERROR);
+}
+
+CODE_SEG("PAGE")
+static BOOLEAN
+BochsQueryNumAvailableModes(
+ _In_ PBOCHS_DEVICE_EXTENSION DeviceExtension,
+ _Out_ PVIDEO_NUM_MODES AvailableModes,
+ _Out_ PSTATUS_BLOCK StatusBlock)
+{
+ AvailableModes->NumModes = DeviceExtension->AvailableModeCount;
+ AvailableModes->ModeInformationLength = sizeof(VIDEO_MODE_INFORMATION);
+
+ StatusBlock->Information = sizeof(*AvailableModes);
+ StatusBlock->Status = NO_ERROR;
+ return TRUE;
+}
+
+CODE_SEG("PAGE")
+static BOOLEAN
+BochsQueryAvailableModes(
+ _In_ PBOCHS_DEVICE_EXTENSION DeviceExtension,
+ _Out_ PVIDEO_MODE_INFORMATION ReturnedModes,
+ _Out_ PSTATUS_BLOCK StatusBlock)
+{
+ ULONG Count;
+ PBOCHS_SIZE AvailableModeInfo;
+ PVIDEO_MODE_INFORMATION ModeInfo;
+
+ for (Count = 0, AvailableModeInfo = DeviceExtension->AvailableModeInfo, ModeInfo =
ReturnedModes;
+ Count < DeviceExtension->AvailableModeCount;
+ Count++, AvailableModeInfo++, ModeInfo++)
+ {
+ VideoPortZeroMemory(ModeInfo, sizeof(*ModeInfo));
+ BochsGetModeInfo(AvailableModeInfo, ModeInfo, Count);
+ }
+
+ StatusBlock->Information = sizeof(VIDEO_MODE_INFORMATION) *
DeviceExtension->AvailableModeCount;
+ StatusBlock->Status = NO_ERROR;
+
+ return TRUE;
+}
+
+CODE_SEG("PAGE")
+static BOOLEAN
+BochsSetCurrentMode(
+ _In_ PBOCHS_DEVICE_EXTENSION DeviceExtension,
+ _In_ PVIDEO_MODE RequestedMode,
+ _Out_ PSTATUS_BLOCK StatusBlock)
+{
+ PBOCHS_SIZE AvailableModeInfo;
+ /* Mask the two high-order bits, which can be set to request special behavior */
+ ULONG ModeRequested = RequestedMode->RequestedMode & 0x3fffffff;
+ BOOLEAN Ret;
+
+ VideoDebugPrint((Info, "Bochs:BochsSetCurrentMode Entry\n"));
+
+ if (ModeRequested >= DeviceExtension->AvailableModeCount)
+ {
+ VideoDebugPrint((Error, "Bochs: set current mode - invalid
parameter\n"));
+ StatusBlock->Status = ERROR_INVALID_PARAMETER;
+ return FALSE;
+ }
+
+ AvailableModeInfo = &DeviceExtension->AvailableModeInfo[ModeRequested];
+
+ /* Set the mode characteristics */
+ BochsWriteDispI(DeviceExtension, VBE_DISPI_INDEX_ENABLE, VBE_DISPI_DISABLED);
+ Ret = BochsWriteDispIAndCheck(DeviceExtension, VBE_DISPI_INDEX_XRES,
AvailableModeInfo->XResolution) &&
+ BochsWriteDispIAndCheck(DeviceExtension, VBE_DISPI_INDEX_YRES,
AvailableModeInfo->YResolution) &&
+ BochsWriteDispIAndCheck(DeviceExtension, VBE_DISPI_INDEX_BPP, 32);
+ /* Always enable screen, even if display settings change failed */
+ BochsWriteDispI(DeviceExtension, VBE_DISPI_INDEX_ENABLE, VBE_DISPI_LFB_ENABLED |
VBE_DISPI_ENABLED);
+ if (!Ret)
+ {
+ VideoDebugPrint((Error, "Bochs: failed to change mode\n"));
+ return FALSE;
+ }
+
+ /* Enable VGA (QEMU secondary-vga disables it by default) */
+ if (!DeviceExtension->IoPorts.RangeInIoSpace)
+ {
+ /* Discard AR flip-flip */
+ (VOID)VideoPortReadRegisterUshort((PUSHORT)(DeviceExtension->IoPorts.Mapped +
0x41A));
+ /* Enable display */
+ VideoPortWriteRegisterUshort((PUSHORT)(DeviceExtension->IoPorts.Mapped +
0x400), 0x20);
+ }
+
+ DeviceExtension->CurrentMode = (USHORT)ModeRequested;
+ StatusBlock->Status = NO_ERROR;
+
+ VideoDebugPrint((Info, "Bochs:BochsSetCurrentMode Exit Mode:%d\n",
ModeRequested));
+ return TRUE;
+}
+
+CODE_SEG("PAGE")
+static BOOLEAN
+BochsQueryCurrentMode(
+ _In_ PBOCHS_DEVICE_EXTENSION DeviceExtension,
+ _Out_ PVIDEO_MODE_INFORMATION VideoModeInfo,
+ _Out_ PSTATUS_BLOCK StatusBlock)
+{
+ PBOCHS_SIZE AvailableModeInfo;
+
+ if (DeviceExtension->CurrentMode > DeviceExtension->AvailableModeCount)
+ {
+ StatusBlock->Status = ERROR_INVALID_PARAMETER;
+ return FALSE;
+ }
+
+ AvailableModeInfo =
&DeviceExtension->AvailableModeInfo[DeviceExtension->CurrentMode];
+ VideoPortZeroMemory(VideoModeInfo, sizeof(*VideoModeInfo));
+ BochsGetModeInfo(AvailableModeInfo, VideoModeInfo, DeviceExtension->CurrentMode);
+
+ StatusBlock->Information = sizeof(*VideoModeInfo);
+ StatusBlock->Status = NO_ERROR;
+ return TRUE;
+}
+
+CODE_SEG("PAGE")
+static BOOLEAN
+BochsResetDevice(
+ _In_ PBOCHS_DEVICE_EXTENSION DeviceExtension,
+ _Out_ PSTATUS_BLOCK StatusBlock)
+{
+ VideoDebugPrint((Info, "Bochs:BochsResetDevice Entry\n"));
+
+ StatusBlock->Status = NO_ERROR;
+
+ VideoDebugPrint((Info, "Bochs:BochsResetDevice Exit\n"));
+ return TRUE;
+}
+
+CODE_SEG("PAGE")
+static BOOLEAN
+BochsGetChildState(
+ _In_ PBOCHS_DEVICE_EXTENSION DeviceExtension,
+ _Out_ PULONG pChildState,
+ _Out_ PSTATUS_BLOCK StatusBlock)
+{
+ *pChildState = VIDEO_CHILD_ACTIVE;
+
+ StatusBlock->Information = sizeof(*pChildState);
+ StatusBlock->Status = NO_ERROR;
+ return TRUE;
+}
+
+CODE_SEG("PAGE")
+VP_STATUS NTAPI
+BochsFindAdapter(
+ _In_ PVOID HwDeviceExtension,
+ _In_ PVOID HwContext,
+ _In_ PWSTR ArgumentString,
+ _In_ PVIDEO_PORT_CONFIG_INFO ConfigInfo,
+ _In_ PUCHAR Again)
+{
+ PBOCHS_DEVICE_EXTENSION DeviceExtension = HwDeviceExtension;
+ VIDEO_ACCESS_RANGE AccessRanges[2] = {0};
+
+ if (ConfigInfo->Length < sizeof(*ConfigInfo))
+ return ERROR_INVALID_PARAMETER;
+
+ if (VideoPortGetAccessRanges(DeviceExtension, 0, NULL, ARRAYSIZE(AccessRanges),
AccessRanges, NULL, NULL, NULL) != NO_ERROR)
+ {
+ VideoDebugPrint((Error, "Bochs: failed to get access ranges\n"));
+ return ERROR_DEV_NOT_EXIST;
+ }
+
+ /* Framebuffer */
+ DeviceExtension->FrameBuffer.RangeStart = AccessRanges[0].RangeStart;
+ DeviceExtension->FrameBuffer.RangeLength = AccessRanges[0].RangeLength;
+ DeviceExtension->FrameBuffer.RangeInIoSpace = AccessRanges[0].RangeInIoSpace;
+
+ /* I/O ports */
+ if (AccessRanges[1].RangeLength == 0)
+ {
+ /* Set default values */
+ AccessRanges[1].RangeStart.LowPart = VBE_DISPI_IOPORT_INDEX;
+ AccessRanges[1].RangeLength = 2;
+ AccessRanges[1].RangeInIoSpace = TRUE;
+ if (VideoPortVerifyAccessRanges(DeviceExtension, 1, &AccessRanges[1]) !=
NO_ERROR)
+ {
+ VideoDebugPrint((Error, "Bochs: failed to claim I/O range
0x%x-0x%x\n",
+ VBE_DISPI_IOPORT_INDEX,
+ VBE_DISPI_IOPORT_INDEX + 1));
+ return ERROR_DEV_NOT_EXIST;
+ }
+ }
+ else if (AccessRanges[1].RangeLength != 0x1000)
+ {
+ VideoDebugPrint((Error, "Bochs: invalid access ranges (size 0x%x)\n",
AccessRanges[1].RangeLength));
+ return ERROR_DEV_NOT_EXIST;
+ }
+ DeviceExtension->IoPorts.RangeStart = AccessRanges[1].RangeStart;
+ DeviceExtension->IoPorts.RangeLength = AccessRanges[1].RangeLength;
+ DeviceExtension->IoPorts.RangeInIoSpace = AccessRanges[1].RangeInIoSpace;
+
+ DeviceExtension->IoPorts.Mapped = VideoPortGetDeviceBase(DeviceExtension,
+
DeviceExtension->IoPorts.RangeStart,
+
DeviceExtension->IoPorts.RangeLength,
+
DeviceExtension->IoPorts.RangeInIoSpace
+ ? VIDEO_MEMORY_SPACE_IO
+ :
VIDEO_MEMORY_SPACE_MEMORY);
+ if (!DeviceExtension->IoPorts.Mapped)
+ {
+ VideoDebugPrint((Error, "Bochs: failed to map dispi interface\n"));
+ return ERROR_DEV_NOT_EXIST;
+ }
+ VideoDebugPrint((Info, "Bochs: address 0x%x mapped to 0x%p\n",
+ DeviceExtension->IoPorts.RangeStart.LowPart,
+ DeviceExtension->IoPorts.Mapped));
+
+ return NO_ERROR;
+}
+
+CODE_SEG("PAGE")
+BOOLEAN NTAPI
+BochsInitialize(
+ _In_ PVOID HwDeviceExtension)
+{
+ ULONG PotentialModeCount = 0;
+ PBOCHS_DEVICE_EXTENSION DeviceExtension = HwDeviceExtension;
+
+ VideoDebugPrint((Info, "Bochs: BochsInitialize\n"));
+
+ if (!BochsGetControllerInfo(DeviceExtension))
+ {
+ BochsFreeResources(DeviceExtension);
+ return FALSE;
+ }
+
+ PotentialModeCount = ARRAYSIZE(BochsAvailableResolutions);
+ DeviceExtension->AvailableModeInfo = VideoPortAllocatePool(HwDeviceExtension,
+ VpPagedPool,
+ PotentialModeCount *
sizeof(BOCHS_SIZE),
+ BOCHS_TAG);
+ if (!DeviceExtension->AvailableModeInfo)
+ {
+ VideoDebugPrint((Error, "Bochs: insufficient resources\n"));
+ BochsFreeResources(DeviceExtension);
+ return FALSE;
+ }
+
+ if (!BochsInitializeSuitableModeInfo(DeviceExtension, PotentialModeCount))
+ {
+ BochsFreeResources(DeviceExtension);
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+CODE_SEG("PAGE")
+BOOLEAN NTAPI
+BochsStartIO(
+ _In_ PVOID HwDeviceExtension,
+ _Inout_ PVIDEO_REQUEST_PACKET RequestPacket)
+{
+ PBOCHS_DEVICE_EXTENSION DeviceExtension = HwDeviceExtension;
+
+ VideoDebugPrint((Info, "Bochs: BochsStartIO\n"));
+ RequestPacket->StatusBlock->Status = ERROR_INVALID_FUNCTION;
+
+ switch (RequestPacket->IoControlCode)
+ {
+ case IOCTL_VIDEO_MAP_VIDEO_MEMORY:
+ {
+ VideoDebugPrint((Info, "BochsStartIO - Map video memory\n"));
+ if (RequestPacket->InputBufferLength < sizeof(VIDEO_MEMORY))
+ {
+ VideoDebugPrint((Error, "BochsStartIO - invalid input
parameter\n"));
+ RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
+ return FALSE;
+ }
+ if (RequestPacket->OutputBufferLength <
sizeof(VIDEO_MEMORY_INFORMATION))
+ {
+ VideoDebugPrint((Error, "BochsStartIO - Insufficent output
buffer\n"));
+ RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
+ return FALSE;
+ }
+ return BochsMapVideoMemory(DeviceExtension,
+ (PVIDEO_MEMORY)RequestPacket->InputBuffer,
+
(PVIDEO_MEMORY_INFORMATION)RequestPacket->OutputBuffer,
+ RequestPacket->StatusBlock);
+ }
+
+ case IOCTL_VIDEO_UNMAP_VIDEO_MEMORY:
+ {
+ VideoDebugPrint((Info, "BochsStartIO - Unmap video memory\n"));
+ if (RequestPacket->InputBufferLength < sizeof(VIDEO_MEMORY))
+ {
+ RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
+ return FALSE;
+ }
+ return BochsUnmapVideoMemory(DeviceExtension,
+ (PVIDEO_MEMORY)RequestPacket->InputBuffer,
+ RequestPacket->StatusBlock);
+ }
+
+ case IOCTL_VIDEO_QUERY_NUM_AVAIL_MODES:
+ {
+ VideoDebugPrint((Info, "BochsStartIO - Query num available
modes\n"));
+ if (RequestPacket->OutputBufferLength < sizeof(VIDEO_NUM_MODES))
+ {
+ RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
+ return FALSE;
+ }
+ return BochsQueryNumAvailableModes(DeviceExtension,
+
(PVIDEO_NUM_MODES)RequestPacket->OutputBuffer,
+ RequestPacket->StatusBlock);
+ }
+
+ case IOCTL_VIDEO_QUERY_AVAIL_MODES:
+ {
+ VideoDebugPrint((Info, "BochsStartIO - Query available modes\n"));
+ if (RequestPacket->OutputBufferLength <
DeviceExtension->AvailableModeCount * sizeof(VIDEO_MODE_INFORMATION))
+ {
+ RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
+ return FALSE;
+ }
+ return BochsQueryAvailableModes(DeviceExtension,
+
(PVIDEO_MODE_INFORMATION)RequestPacket->OutputBuffer,
+ RequestPacket->StatusBlock);
+ }
+
+ case IOCTL_VIDEO_SET_CURRENT_MODE:
+ {
+ VideoDebugPrint((Info, "BochsStartIO - Set current mode\n"));
+ if (RequestPacket->InputBufferLength < sizeof(VIDEO_MODE))
+ {
+ VideoDebugPrint((Error, "Bochs: set current mode - invalid
parameter\n"));
+ RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
+ return FALSE;
+ }
+ return BochsSetCurrentMode(DeviceExtension,
+ (PVIDEO_MODE)RequestPacket->InputBuffer,
+ RequestPacket->StatusBlock);
+ }
+
+ case IOCTL_VIDEO_QUERY_CURRENT_MODE:
+ {
+ VideoDebugPrint((Info, "BochsStartIO - Query current mode\n"));
+ if (RequestPacket->OutputBufferLength <
sizeof(VIDEO_MODE_INFORMATION))
+ {
+ RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
+ return FALSE;
+ }
+ return BochsQueryCurrentMode(DeviceExtension,
+
(PVIDEO_MODE_INFORMATION)RequestPacket->OutputBuffer,
+ RequestPacket->StatusBlock);
+ }
+
+ case IOCTL_VIDEO_RESET_DEVICE:
+ {
+ VideoDebugPrint((Info, "BochsStartIO - Reset device\n"));
+ return BochsResetDevice(DeviceExtension,
+ RequestPacket->StatusBlock);
+ }
+
+ case IOCTL_VIDEO_GET_CHILD_STATE:
+ {
+ VideoDebugPrint((Info, "BochsStartIO - Get child state\n"));
+ if (RequestPacket->OutputBufferLength < sizeof(ULONG))
+ {
+ RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
+ return FALSE;
+ }
+ return BochsGetChildState(DeviceExtension,
+ (PULONG)RequestPacket->OutputBuffer,
+ RequestPacket->StatusBlock);
+ }
+
+ default:
+ {
+ VideoDebugPrint((Warn, "BochsStartIO - Unknown IOCTL - 0x%08x\n",
+ RequestPacket->IoControlCode));
+ break;
+ }
+ }
+
+ return FALSE;
+}
+
+CODE_SEG("PAGE")
+VP_STATUS NTAPI
+BochsSetPowerState(
+ _In_ PVOID HwDeviceExtension,
+ _In_ ULONG HwId,
+ _In_ PVIDEO_POWER_MANAGEMENT VideoPowerControl)
+{
+ return NO_ERROR;
+}
+
+CODE_SEG("PAGE")
+VP_STATUS NTAPI
+BochsGetPowerState(
+ _In_ PVOID HwDeviceExtension,
+ _In_ ULONG HwId,
+ _Out_ PVIDEO_POWER_MANAGEMENT VideoPowerControl)
+{
+ return ERROR_DEVICE_REINITIALIZATION_NEEDED;
+}
+
+CODE_SEG("PAGE")
+VP_STATUS NTAPI
+BochsGetVideoChildDescriptor(
+ _In_ PVOID HwDeviceExtension,
+ _In_ PVIDEO_CHILD_ENUM_INFO ChildEnumInfo,
+ _Out_ PVIDEO_CHILD_TYPE VideoChildType,
+ _Out_ PUCHAR pChildDescriptor,
+ _Out_ PULONG UId,
+ _Out_ PULONG pUnused)
+{
+ PBOCHS_DEVICE_EXTENSION DeviceExtension = HwDeviceExtension;
+
+ VideoDebugPrint((Info, "Bochs: BochsGetVideoChildDescriptor Entry\n"));
+
+ if (ChildEnumInfo->Size < sizeof(*VideoChildType))
+ return VIDEO_ENUM_NO_MORE_DEVICES;
+
+ if (ChildEnumInfo->ChildIndex == 0)
+ {
+ /* Ignore ACPI enumerations */
+ return VIDEO_ENUM_INVALID_DEVICE;
+ }
+
+ *pUnused = 0;
+ if (ChildEnumInfo->ChildIndex == DISPLAY_ADAPTER_HW_ID)
+ {
+ *VideoChildType = VideoChip;
+ return VIDEO_ENUM_MORE_DEVICES;
+ }
+
+ if (ChildEnumInfo->ChildIndex != 1)
+ return VIDEO_ENUM_NO_MORE_DEVICES;
+
+ *UId = 0;
+ *VideoChildType = Monitor;
+
+ if (pChildDescriptor &&
+ ChildEnumInfo->ChildDescriptorSize >= VBE_EDID_SIZE &&
+ !DeviceExtension->IoPorts.RangeInIoSpace)
+ {
+ memcpy(pChildDescriptor,
+ DeviceExtension->IoPorts.Mapped,
+ VBE_EDID_SIZE);
+ }
+
+ VideoDebugPrint((Info, "Bochs: BochsGetVideoChildDescriptor Exit Uid:%d\n",
ChildEnumInfo->ChildIndex));
+
+ return VIDEO_ENUM_MORE_DEVICES;
+}
+
+ULONG NTAPI
+DriverEntry(PVOID Context1, PVOID Context2)
+{
+ VIDEO_HW_INITIALIZATION_DATA VideoInitData;
+
+ VideoDebugPrint((Info, "Bochs: DriverEntry\n"));
+ VideoPortZeroMemory(&VideoInitData, sizeof(VideoInitData));
+ VideoInitData.HwInitDataSize = sizeof(VideoInitData);
+ VideoInitData.HwFindAdapter = BochsFindAdapter;
+ VideoInitData.HwInitialize = BochsInitialize;
+ VideoInitData.HwStartIO = BochsStartIO;
+ VideoInitData.HwDeviceExtensionSize = sizeof(BOCHS_DEVICE_EXTENSION);
+ VideoInitData.HwSetPowerState = BochsSetPowerState;
+ VideoInitData.HwGetPowerState = BochsGetPowerState;
+ VideoInitData.HwGetVideoChildDescriptor = BochsGetVideoChildDescriptor;
+
+ return VideoPortInitialize(Context1, Context2, &VideoInitData, NULL);
+}
diff --git a/win32ss/drivers/miniport/bochs/bochsmp.h
b/win32ss/drivers/miniport/bochs/bochsmp.h
new file mode 100644
index 00000000000..b9d8cb242b7
--- /dev/null
+++ b/win32ss/drivers/miniport/bochs/bochsmp.h
@@ -0,0 +1,69 @@
+/*
+ * PROJECT: ReactOS Bochs graphics card driver
+ * LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
+ * PURPOSE: Bochs graphics card driver
+ * COPYRIGHT: Copyright 2022 Hervé Poussineau <hpoussin(a)reactos.org>
+ */
+
+#ifndef BOCHS_H
+#define BOCHS_H
+
+#include <ntdef.h>
+#include <dderror.h>
+#include <miniport.h>
+#include <video.h>
+#include <devioctl.h>
+#include <section_attribs.h>
+
+#define VBE_EDID_SIZE 0x80
+
+#define VBE_DISPI_IOPORT_INDEX 0x01CE
+#define VBE_DISPI_IOPORT_DATA 0x01CF
+#define VBE_DISPI_INDEX_ID 0x00
+ #define VBE_DISPI_ID0 0xB0C0
+ #define VBE_DISPI_ID1 0xB0C1
+ #define VBE_DISPI_ID2 0xB0C2
+ #define VBE_DISPI_ID3 0xB0C3
+ #define VBE_DISPI_ID4 0xB0C4
+ #define VBE_DISPI_ID5 0xB0C5
+#define VBE_DISPI_INDEX_XRES 0x01
+#define VBE_DISPI_INDEX_YRES 0x02
+#define VBE_DISPI_INDEX_BPP 0x03
+#define VBE_DISPI_INDEX_ENABLE 0x04
+ #define VBE_DISPI_DISABLED 0x00
+ #define VBE_DISPI_ENABLED 0x01
+ #define VBE_DISPI_GETCAPS 0x02
+ #define VBE_DISPI_LFB_ENABLED 0x40
+#define VBE_DISPI_INDEX_VIDEO_MEMORY_64K 0x0A
+
+#define BOCHS_TAG 'BCHS'
+
+typedef struct
+{
+ USHORT XResolution;
+ USHORT YResolution;
+} BOCHS_SIZE, *PBOCHS_SIZE;
+
+typedef struct
+{
+ PUCHAR Mapped;
+ PHYSICAL_ADDRESS RangeStart;
+ ULONG RangeLength;
+ UCHAR RangeInIoSpace;
+} BOCHS_ADDRESS_RANGE;
+
+typedef struct
+{
+ PBOCHS_SIZE AvailableModeInfo;
+ ULONG AvailableModeCount;
+ USHORT CurrentMode;
+
+ BOCHS_ADDRESS_RANGE FrameBuffer;
+ BOCHS_ADDRESS_RANGE IoPorts;
+
+ ULONG MaxXResolution;
+ ULONG MaxYResolution;
+ ULONG VramSize64K;
+} BOCHS_DEVICE_EXTENSION, *PBOCHS_DEVICE_EXTENSION;
+
+#endif //BOCHS_H
diff --git a/win32ss/drivers/miniport/bochs/bochsmp.inf
b/win32ss/drivers/miniport/bochs/bochsmp.inf
new file mode 100644
index 00000000000..5b7ee4d56d7
--- /dev/null
+++ b/win32ss/drivers/miniport/bochs/bochsmp.inf
@@ -0,0 +1,62 @@
+; bochsmp.inf
+;
+; Installation file for the Bochs display adapter
+;
+[Version]
+Signature = "$Windows NT$"
+LayoutFile = layout.inf
+Class = Display
+ClassGUID = {4D36E968-E325-11CE-BFC1-08002BE10318}
+Provider = %ReactOS%
+DriverVer = 10/17/2022,1.00
+
+[DestinationDirs]
+DefaultDestDir = 12
+Bochs.Display_CopyFiles = 11
+
+[Manufacturer]
+%Bochs% = Bochs
+
+[Bochs]
+%Bochs.DeviceDesc% = Bochs,PCI\VEN_1234&DEV_1111
+
+;---------------------------- BOCHS DRIVER ----------------------------
+
+[Bochs]
+CopyFiles = Bochs.Miniport_CopyFiles, Bochs.Display_CopyFiles
+
+[Bochs.Miniport_CopyFiles]
+bochsmp.sys
+
+[Bochs.Display_CopyFiles]
+framebuf.dll
+
+[Bochs.SoftwareSettings]
+AddReg = Bochs_SoftwareSettings
+
+[Bochs_SoftwareSettings]
+HKR,, InstalledDisplayDrivers, %REG_MULTI_SZ%, framebuf
+HKR,, VgaCompatible, %REG_DWORD%, 0
+
+[Bochs.Services]
+AddService = bochsmp, 0x00000002, Bochs_Service
+
+[Bochs_Service]
+ServiceType = 1
+StartType = 3
+ErrorControl = 0
+ServiceBinary = %12%\bochsmp.sys
+LoadOrderGroup = Video
+
+;-------------------------------- STRINGS -------------------------------
+
+[Strings]
+; Non-localizable
+ReactOS = "ReactOS Project"
+Bochs = "Bochs"
+
+REG_MULTI_SZ = 0x00010000
+REG_DWORD = 0x00010001
+
+; Localizable
+Bochs.DeviceDesc = "Bochs Graphics Adapter"
diff --git a/win32ss/drivers/miniport/bochs/bochsmp.rc
b/win32ss/drivers/miniport/bochs/bochsmp.rc
new file mode 100644
index 00000000000..6524e2b64e8
--- /dev/null
+++ b/win32ss/drivers/miniport/bochs/bochsmp.rc
@@ -0,0 +1,5 @@
+#define REACTOS_VERSION_DLL
+#define REACTOS_STR_FILE_DESCRIPTION "Bochs graphics adapter miniport"
+#define REACTOS_STR_INTERNAL_NAME "bochsmp.sys"
+#define REACTOS_STR_ORIGINAL_FILENAME "bochsmp.sys"
+#include <reactos/version.rc>
diff --git a/win32ss/drivers/miniport/bochs/bochsmp_reg.inf
b/win32ss/drivers/miniport/bochs/bochsmp_reg.inf
new file mode 100644
index 00000000000..740132606fb
--- /dev/null
+++ b/win32ss/drivers/miniport/bochs/bochsmp_reg.inf
@@ -0,0 +1,13 @@
+[AddReg]
+HKLM,"SYSTEM\CurrentControlSet\Services\bochsmp","ErrorControl",0x00010001,0x00000000
+HKLM,"SYSTEM\CurrentControlSet\Services\bochsmp","Group",0x00000000,"Video"
+HKLM,"SYSTEM\CurrentControlSet\Services\bochsmp","ImagePath",0x00020000,"system32\drivers\bochsmp.sys"
+HKLM,"SYSTEM\CurrentControlSet\Services\bochsmp","Start",0x00010001,0x00000003
+HKLM,"SYSTEM\CurrentControlSet\Services\bochsmp","Type",0x00010001,0x00000001
+HKLM,"SYSTEM\CurrentControlSet\Services\bochsmp\Video","Service",0x00000000,"bochsmp"
+
+HKLM,"SYSTEM\CurrentControlSet\Services\bochsmp\Device0","Device
Description",0x00000000,"Bochs Graphics Adapter"
+HKLM,"SYSTEM\CurrentControlSet\Services\bochsmp\Device0","InstalledDisplayDrivers",0x00010000,"framebuf"
+HKLM,"SYSTEM\CurrentControlSet\Services\bochsmp\Device0","VgaCompatible",0x00010001,0
+HKLM,"SYSTEM\CurrentControlSet\Services\bochsmp\Device0","DefaultSettings.XResolution",0x00010001,800
+HKLM,"SYSTEM\CurrentControlSet\Services\bochsmp\Device0","DefaultSettings.YResolution",0x00010001,600
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Hervé Poussineau